Neurons and Neuroglial cells

Front

What are neurons?

Back

Neurons are specialized cells that transmit signals throughout the body, facilitating communication between the brain and other parts of the nervous system.

Front

What are neuroglial cells?

Back

Neuroglial cells, or glial cells, are non-neuronal cells in the nervous system that support, protect, and maintain the function of neurons.

Front

What is the function of astrocytes?

Back

Astrocytes attach neurons to blood vessels, provide nutrients, and maintain the blood-brain barrier.

Front

What role do microglia play in the CNS?

Back

Microglia are small cells that act as the immune defense in the central nervous system, engulfing and destroying pathogens and debris.

Front

What is the primary function of oligodendrocytes?

Back

Oligodendrocytes produce myelin, which insulates axons and enhances the speed of electrical signals in the nervous system.

Front

What are the main types of neuroglial cells?

Back

The main types of neuroglial cells include astrocytes, microglia, oligodendrocytes, and ependymal cells.

Front

How do neurons communicate with each other?

Back

Neurons communicate through synapses, where neurotransmitters are released from one neuron and bind to receptors on another.

Front

What is the blood-brain barrier?

Back

The blood-brain barrier is a selective permeability barrier formed by astrocytes that protects the brain from harmful substances in the bloodstream.

Front

What is the function of ependymal cells?

Back

Ependymal cells line the ventricles of the brain and the central canal of the spinal cord, helping to circulate cerebrospinal fluid.

Front

What is myelin and its importance?

Back

Myelin is a fatty substance that insulates axons, allowing for faster transmission of electrical impulses along the nerve fibers.